Pass the Nokia SRC Certification 4A0-C02 Questions and answers with CertsForce

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Viewing questions 136-150 out of questions
Questions # 136:

Click the exhibit.

Question # 136

The AS-path nullification method is used to prevent CE2 from discarding routes received from CE1. On which router should the AS-path nullification policy be configured?

Options:

A.

CE1


B.

PE2


C.

PE1


D.

CE2


Questions # 137:

In a VPRN, what type of logical topology is required for the BGP sessions configured in the provider core?

Question # 137

Options:

A.

Full mesh between all CE, PE and P devices


B.

Full mesh between PE and P devices


C.

Full mesh of P devices


D.

Full mesh of PE devices


E.

Full mesh between PE and CE devices


Questions # 138:

Which of the following about inter-AS model B VPRN is FALSE?

Options:

A.

Model B does not require the configuration of VPRN instances on ASBRs.


B.

The ASBRs peer with each other to transport VPN-IPv4 routes between autonomous systems.


C.

PE routers distribute VPN-IPv4 routes to their local ASBR.


D.

One single ASBR is required in each AS to hold the routes for all VPRNs.


Questions # 139:

Where are VPN-IPv4 addresses used in a VPRN?

Options:

A.

In the routing updates exchanged from CE to PE


B.

In the routing updates exchanged from PE to PE


C.

In the routing updates exchanged from P to PE


D.

In customer packets as they traverse the provider core


E.

In all route tables of the VPRN control plane


Questions # 140:

Which protocol is used to exchange customer VPRN routes between PE devices?

Options:

A.

OSPF


B.

ISIS


C.

MP-BGP


D.

BGP


E.

Targeted LDP


Questions # 141:

For a Carrier Supporting Carrier (CSC) VPRN where the customer carrier is a BGP/MPLS VPN Service Provider (SP), which of the following is FALSE?

Options:

A.

The customer carrier network can be a pure IP network.


B.

The customer carrier provides Layer 2 and Layer 3 services to its end-customers.


C.

A single CSC VPRN is configured on the network provider to support all services offered by the customer carrier.


D.

In the case where the customer carrier offers VPRN services, the model is referred to as hierarchical VPRN.


Questions # 142:

Click the exhibit.

Question # 142

For the inter-AS model B VPRN, which of the following is the correct BGP configuration on ASBR1?

Question # 142

Options:

A.

Option A


B.

Option B


C.

Option C


D.

Option D


Questions # 143:

Which of the following about the configuration of BGP Site of Origin (SoO) is TRUE?

Options:

A.

Each PE must implement a policy to apply a unique SoO attribute to the set of routes received from each customer site.


B.

A different BGP extended community is used on each PE that connects to a single site.


C.

An import policy on the PE rejects a route if the attached SoO matches the configured value.


D.

Import and export policies are applied on the PEs under the global BGP context.


Questions # 144:

Which of the following statements best describes the output from an Alcatel-Lucent 7750 SR shown below?

Options:

A.

The As-Path is not present as it was removed with the s-override configuration command


B.

The As-Path is not present as it was removed with the o-as-path configuration command


C.

The As-Path is not present as a policy was configured to set it to the null value


D.

The As-Path is not present as VPN-IPv4 routes do not propagate the IPv4 As-Path BGP attribute


Questions # 145:

Which of the following describes BGP route processing on the Alcatel-Lucent 7750 SR?

Options:

A.

If no import policy is specified, all valid BGP routes are passed to the BGP route selection process.


B.

If no export policy is specified, all non-BGP routes are populated into RIB-Out.


C.

If no import policy is specified, all BGP routes are populated into the route table.


D.

If no import policy is specified, only valid BGP routes are populated into RIB-Out.


Questions # 146:

What is the result of configuring the following policy statement as a BGP import policy on the Alcatel-Lucent 7750 SR?

Question # 146

Options:

A.

All BGP routes are accepted.


B.

All routes matching prefix lists "List-1" and "List-2" are rejected.


C.

BGP routes matching prefix lists "List-1" or "List-2" are rejected.


D.

BGP routes matching prefix lists "List-1" and "List-2" are rejected.


Questions # 147:

How is the aggregator attribute handled with 32-bit AS numbers?

Options:

A.

With the same method and attribute as 16-bit AS numbers.


B.

With the same method as 16-bit AS numbers, but using the AS4_Aggregator attribute.


C.

Aggregation is not yet supported with 32-bit AS numbers.


D.

By using a dummy value of 23456 in the 16-bit AS aggregator field. This value lets the router know it needs to read the 32-bit AS number that is contained in the nextTLV.


Questions # 148:

Click the exhibit.

Question # 148

Assume all router-IDs are properly configured. Which of the following configurations is required on the Alcatel-Lucent 7750 SR router A to establish an IPv6 BGP session to router D?

Question # 148

Options:

A.

Option A


B.

Option B


C.

Option C


D.

Option D


Questions # 149:

Click the exhibit.

Question # 149

Routers C and E are route reflectors. When the update for prefix 192.168.2.0/24 is received at router F, what will be the Originator_ID attribute?

Options:

A.

The router ID of router A.


B.

The router ID of router B.


C.

The router ID of router C.


D.

It will not be set.


Questions # 150:

Which of the following regarding BGP authentication on the Alcatel-Lucent 7750 SR is FALSE?

Options:

A.

Authentication is performed before establishing the BGP session.


B.

Authentication can only be configuredon the group or neighbor level.


C.

By default, MD5 authentication is disabled.


D.

Peer authentication may be optionally requested in an open message.


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